I get that for sure, I was just thinking that someone more well versed in ballistics programs and how to read the little things like height above sight line and impact could help get me close.
As mathman posted above it is more than a vertical when loads are changed. I used the same bullet but changed powder in my 300 win both loads were book max, the point of impact changed both veil clay and horizontally.
As I posted above it is anyone's guess and the likely hood of guessing correctly is very, very slim.
